.digital_textbook-detailpage .visual-section {
    position: relative;
    overflow: hidden;
} 
.digital_textbook-detailpage .visual-section::before {
    position: absolute;
    left: 0;
    top: 0;
    z-index: -100;
    width: 100%;
    height: 100%;
    background-color: #F6F8F8;
    content: "";
}
.digital_textbook-detailpage .visual-section::after {
    position: absolute;
    left: 0;
    top: 0;
    z-index: -50;
    width: 100%;
    height: 100%;
    background: url(../../img/project/digital_textbook/visual_bg.png) no-repeat center bottom / contain;
    content: "";
}
.digital_textbook-detailpage .overview-section {
    background-color: #FFFFFF;
}
.digital_textbook-detailpage .overview-section .contents-wrap {
    display: flex;
    flex-direction: column;
    gap: 100px;
}
.digital_textbook-detailpage .overview-section .contents-wrap .main-wrap {
    display: flex;
}
.digital_textbook-detailpage .overview-section .contents-wrap .main-wrap:nth-child(1) {
    justify-content: center;
    margin-bottom: 16px;
}
.digital_textbook-detailpage .overview-section .contents-wrap .main-wrap:nth-child(2) {
    position: relative;
    display: flex;
    justify-content: flex-end;
    padding: 16px 0 0 0;
}
.digital_textbook-detailpage .overview-section .contents-wrap .main-wrap .inner {
    max-width: 1450px;
    width: 75vw;
}
.digital_textbook-detailpage .overview-section .contents-wrap .main-wrap:nth-child(3) {
  
    justify-content: flex-start;
}

.digital_textbook-detailpage .tone-manner-section {
    background-color: #F9F9F9;
}
.digital_textbook-detailpage .tone-manner-section .contents-wrap ul li.white {
    width: 50%;
    background: #FFF;
}
.digital_textbook-detailpage .tone-manner-section .contents-wrap ul li.white span {
    color: rgba(16, 12, 18, 0.1);
}
.digital_textbook-detailpage .tone-manner-section .contents-wrap ul li.green {
    background: #45BCB6;
}
.digital_textbook-detailpage .tone-manner-section .contents-wrap ul li.black {
    background: #000;
}


.digital_textbook-detailpage .detailpage-section.chart-section {
    position: relative;
}
.digital_textbook-detailpage .detailpage-section.chart-section::before {
    position: absolute;
    left: 0;
    top: 0;
    z-index: -100;
    width: 100%;
    height: 100%;
    background-color: #fff;
    content: "";
}
.digital_textbook-detailpage .detailpage-section.chart-section::after {
    position: absolute;
    left: 0;
    top: 0;
    z-index: -50;
    width: 100%;
    height: 100%;
    background: url(../../img/project/digital_textbook/chartgrid_bg.jpg) no-repeat center bottom / contain;
    content: "";
}
.digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap {
    display: flex;
    flex-direction: column;
    gap: 100px;
    padding: 0 30px;
}
.digital_textbook-detailpage .detailpage-section.grid-section {
    background: linear-gradient(180deg, #EEFCFB 0%, #D1EDEB 100%);
}
.digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap {
    display: flex;
    flex-direction: column;
    gap: 100px;
    transform: rotate(-4deg);
    padding: 77px 0 82px 0;
}
.digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap ul {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 45px;
}
.digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap ul li {
    flex-shrink: 0;
    max-width: 1450px;
    width: 75vw;
}
.digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap ul li .img-title-wrap .img-area {
    outline: none;
    box-shadow: 0 20px 30px 20px rgba(0, 0, 0, 0.05);
}
.digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap .pc-wrap {
    display: flex;
}
.digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap .pc-wrap:nth-child(2) {
    justify-content: flex-end;
}
.digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap .pc-wrap .img-title-wrap {
    max-width: 1450px;
    width: 75vw;
}
.digital_textbook-detailpage .detailpage-section.modal-section {
    background-color: #F6F8F8;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul {
    display: flex;
    flex-direction: column;
    gap: 50px;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li {
    display: flex;
    align-items: stretch;
    gap: 20px;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .img-box {
    width: calc(73% - 10px);
    border-radius: 30px;
    overflow: hidden;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box {
    width: calc(27% - 10px);
    border-radius: 30px;
    overflow: hidden;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .img-box img,
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box img{
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box img.m-img {
    display: none;
}

.digital_textbook-detailpage .detailpage-section.contents-section {
    background-color: #fff;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul {
    display: flex;
    flex-direction: column;
    gap: 50px;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li {
    display: flex;
    align-items: stretch;
    gap: 40px;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .img-box {
    width: calc(64% - 20px);
    border-radius: 30px;
    overflow: hidden;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .title-box {
    width: calc(36% - 20px);
    border-radius: 30px;
    overflow: hidden;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li:nth-child(2) .img-box {
    width: 100%;
}
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .img-box img,
.digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .title-box img{
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
@media screen and (max-width : 1280px) {
    .digital_textbook-detailpage .overview-section .contents-wrap .main-wrap .inner {
        width: 80vw;
    }
    .digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap .pc-wrap .img-title-wrap {
        width: 80vw;
    }
}

@media screen and (max-width : 768px) {
    .digital_textbook-detailpage .visual-section .project-info .wrapper80 .title h2 {
        font-size: 55px;
    }
    .digital_textbook-detailpage .visual-section .project-mainimg .pc-img {
        display: none;
    }
    .digital_textbook-detailpage .visual-section .project-mainimg .m-img {
        display: block;
    }
    .digital_textbook-detailpage .visual-section::after {
        display: none;
    }
    .digital_textbook-detailpage .overview-section .contents-wrap {
        gap: 50px;
    }
    .digital_textbook-detailpage .overview-section .contents-wrap .main-wrap .inner {
        width: 100%;
    }
    .digital_textbook-detailpage .overview-section .contents-wrap .main-wrap:nth-child(2) .inner {
        margin-right: -10%;
    }
    .digital_textbook-detailpage .overview-section .contents-wrap .main-wrap:nth-child(3) {
        padding: 0;
        justify-content: center;
    }

    .digital_textbook-detailpage .detailpage-section.grid-section .project-detail-head h2 {
        font-size: 55px;
    }
    .digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap {
        transform: rotate(-7deg);
    }
    .digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap {
        gap: 40px;
        padding: 44px 0 44px 0;
    }
    .digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap ul {
        gap: 20px;
    }
    .digital_textbook-detailpage .detailpage-section.grid-section .contents-wrap ul li {
        width: 100%;
    }


    .digital_textbook-detailpage .detailpage-section.modal-section .project-detail-head h2 {
        font-size: 55px;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul {
        gap: 30px;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li:nth-child(2) {
        flex-direction: column-reverse;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .img-box {
        width: 100%;
        border-radius: 20px;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box {
        width: 100%;
        border-radius: 20px;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box img.pc-img {
        display: none;
    }
    .digital_textbook-detailpage .detailpage-section.modal-section .contents-wrap ul li .title-box img.m-img {
        display: block;
    }
        
    .digital_textbook-detailpage .detailpage-section.contents-section .project-detail-head h2 {
        font-size: 55px;
    }
    .digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul {
        gap: 30px;
    }
    .digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li {
        flex-direction: column;
        align-items: center;
        gap: 30px;
    }
    .digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .img-box {
        width: 100%;
        border-radius: 10px;
    }
    .digital_textbook-detailpage .detailpage-section.contents-section .contents-wrap ul li .title-box {
        width: 100%;
        border-radius: 15px;
    }
    .digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap {
        padding: 0;
        gap: 50px;
    }
    .digital_textbook-detailpage .detailpage-section.chart-section .contents-wrap .pc-wrap .img-title-wrap {
        width: 100%;
    }

}


@media screen and (max-width : 500px) {
    .digital_textbook-detailpage .f-thumb-section {
        aspect-ratio: 390 / 518;
        min-height: 518px;
    }
    .digital_textbook-detailpage .f-thumb-section .wrapper80 h2 {
        font-size: 36px;
    }
}